Lamp



FIG. 1 is an elevated perspective view of the light bulb base of the claimed invention

FIG. 2 is a front view of the light bulb base shown in FIG. 1;

FIG. 3 is a side view of the light bulb base shown in FIG. 1, each other side view being identical thereto;

FIG. 4 is a top view of the light bulb base shown in FIG. 1; and,

FIG. 5 is a bottom view of the light bulb base shown in FIG. 1.

Features shown in broken lines in the drawings are not part of the claim. 

We claim the ornamental design for a lamp, as shown and described. 